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  • Writer's picturePia Singh

Cannabis-Induced Disorders: Insights from Psychology, Psychiatry, and Neuroscience

Cannabis, also known as marijuana, has been used for both recreational and medicinal purposes for centuries. In recent years, changes in legislation and public attitudes towards cannabis have led to increased consumption. However, the use of cannabis is not without risks, as it can lead to various disorders that impact psychological, psychiatric, and neurological aspects of an individual's health. In this blog, we will delve into the intricate nature of cannabis-induced disorders, drawing insights from the fields of psychology, psychiatry, and neuroscience.


Cannabis Use Disorder (CUD): A Psychological Perspective

Psychologically, cannabis use disorder (CUD) is characterized by a problematic pattern of cannabis use, leading to clinically significant impairment or distress. Several psychological factors contribute to the development of CUD:

  • Reinforcement and Pleasure: Cannabis use can trigger the release of dopamine in the brain, creating a sense of euphoria and relaxation. This reinforcement effect can lead to the development of CUD as individuals seek to replicate these pleasurable experiences.

  • Peer Influence: Social and peer pressures play a significant role in initiating and maintaining cannabis use. Adolescents and young adults, in particular, may be influenced by their social circles to use cannabis, which can increase the risk of CUD.

  • Genetics: Research has shown that there is a genetic component to CUD vulnerability. Some individuals may be genetically predisposed to developing a cannabis use disorder, as certain genes influence how they respond to the effects of cannabis.

  • Psychiatric Comorbidity: Individuals with pre-existing psychological conditions, such as anxiety or depression, are at a higher risk of developing CUD. They may use cannabis as a form of self-medication, which can exacerbate their mental health issues.


Psychiatry and Cannabis-Related Disorders

Psychiatry plays a critical role in addressing the psychiatric and co-occurring disorders linked to cannabis use:

  • Cannabis-Induced Psychosis: In some cases, cannabis use can trigger symptoms of psychosis, including hallucinations and delusions. This is particularly concerning for individuals with a predisposition to psychotic disorders.

  • Co-Occurring Substance Abuse: Cannabis use is often associated with the use of other substances, such as alcohol or harder drugs. The co-occurring abuse of these substances can complicate diagnosis and treatment.

  • Cannabis Withdrawal: When individuals who use cannabis regularly attempt to quit, they may experience withdrawal symptoms such as irritability, insomnia, and decreased appetite. Psychiatrists play a crucial role in helping individuals manage these withdrawal symptoms.


Neuroscience: The Impact of Cannabis on the Brain

Understanding the neurological effects of cannabis use is crucial in grasping its impact on individuals:

  • Endocannabinoid System: The brain has an endocannabinoid system that interacts with the cannabinoids present in cannabis. Chronic cannabis use can disrupt the balance of this system, impacting mood, cognition, and motivation.

  • Hippocampal Atrophy: Prolonged cannabis use has been associated with structural changes in the brain, particularly in the hippocampus. This can impact memory and cognitive function.

  • Impact on Adolescents: The adolescent brain is particularly susceptible to the effects of cannabis. Cannabis use during this critical developmental period can lead to cognitive deficits and an increased risk of CUD.

  • Motivation and Reward Systems: Cannabis can affect the brain's reward pathways, impacting an individual's motivation and response to natural rewards, such as food or social interaction.


Cannabis-induced disorders encompass a wide array of psychological, psychiatric, and neurological factors. While cannabis has therapeutic potential, it also carries risks that should not be underestimated. A comprehensive approach, drawing from insights in psychology, psychiatry, and neuroscience, is crucial for the prevention, intervention, and treatment of cannabis-induced disorders. This multidisciplinary approach is essential in providing effective care and support for individuals struggling with the complexities of cannabis-related issues. By combining expertise from these fields, we can better address the challenges posed by cannabis use and promote the health and well-being of those affected by cannabis-induced disorders.

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